The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 28, 2021
Filed:
Jun. 15, 2018
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Per Ernström, Stockholm, SE;
Håkan Björkegren, Täby, SE;
Mattias Frenne, Uppsala, SE;
Lars Lindbom, Karlstad, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A radio node () is configured to perform frequency offset estimation. The radio node () in this regard receives a first set (-) of reference symbols of a reference signal during respective time resources, and determines a first frequency offset estimate (-) using the first set (-) of reference symbols. The radio node () also receives a second set (-) of 5 reference symbols of the reference signal during respective time resources, e.g., using the same local oscillator frequency for down conversion as with the first set (-). The radio node () further determines, based on the first frequency offset estimate (-), a second frequency offset estimate (-) using the second set (-) of reference symbols. In some embodiments, the radio node () determines a third frequency offset estimate as a sum of the first and 10 second frequency offset estimates, and tunes a local oscillator frequency, or performs frequency offset compensation, based on the third frequency offset estimate.